Is there a way to run nginx in debug mode?

[alibeyram]

I was wondering if there is a way to use nginx-debug too from https://hub.docker.com/_/nginx

this is what they said to put in the docker-compose.yml

web:
  image: nginx
  volumes:
    - ./nginx.conf:/etc/nginx/nginx.conf:ro
  command: [nginx-debug, '-g', 'daemon off;']

I have already added
error_log /var/log/nginx/error.log debug;
to the /etc/nginx/vhost.d/default file but I cannot see debug output.

The reason I want the output is to find out why my proxy_pass does not work.

here is my default file:

error_log /var/log/nginx/error.log debug;

[alibeyram]

solution:

add the following to the docker file and

RUN rm /usr/sbin/nginx
RUN mv /usr/sbin/nginx-debug /usr/sbin/nginx